Slide 10
Slide 10 text
BEFORE YOU START SHOUTING,
BIKO!
Apt-get update: updates the list
of available packages and their
versions, but it does not install or
upgrade any packages.
Apt-get upgrade installs newer
versions of the packages you
have. After updating the lists, the
package manager
knows about available updates
for the software you have
installed. This is why you first
want to update.